Question: What year did Giza Governorate have a population of 6.29432e+06?
Paraphrase: What year did Giza Governorate have a populace of  6.29432e+06?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q30832 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '6.29432e+06')) . ?s pq:P585 ?value}